Steel Heat Treatment Technology

In the context of the development of the pace of modern production, the role of heat treatment is increasing, as the main method for producing steels with a given structure and mechanical properties. The parts and tools obtained because of heat treatment are widely used practically in all areas of human life. In Russia, up to 10% of melted steel grades are subjected to heat treatment hardening. For mechanical engineering, the volume of thermal redistribution exceeds 45% of the steel consumed by this industry. Both parts of devices, various parts of machines and large elements of equipment of metallurgical, transport, and energy industries undergo hardening. The main types of heat treatment are annealing, hardening, normalization and tempering, as well as thermomechanical processing of steel. In this paper, the main aspects of the theory and technology of heat treatment of steel are subject to consideration with a detailed consideration of the above methods of heat hardening of steels.